Rust中r#的含义

两种情况用到r#

1. 使用Rust关键字作为变量名、函数名、模块名等标识符，可以在关键字前面加上前缀r#，这样编译器就会将其解析为标识符而非关键字。

pub struct Tool {
    /// The schema of the tool. Currently, only functions are supported.
    r#type: ToolType,
    /// The schema of the tool. Currently, only functions are supported.
    function: FunctionInfo,
}

2. 字符串字面量中包含特殊字符，也可以在字符串前添加r#，结尾添加#.

fn main(){

    let website = r#"
        "xiachedan.cn"
    "#;

    println!("{}",website);
}